2 3 reps so far, not sure how many more are possible. That concept opens the door to an easier 4-5k followup off the fuzzy though.
The bitch is in timing the pit release. Too soon and 2C won't catch or 2A won't even hit, too late and the pillar doesn't combo.
Edit: Goddamn you Tempered, now I'm going to end up practicing this shit all night.
Edit2: So it seems a single rep might be best in terms of risk of dropping:reward ratios, with 1 rep variation doing 4948 and 2 reps being 5007 (V.Sion); single rep allows for a different combo that 2 reps pushes you out too far to do.
And V.Akiha is a bitch that forces me to use 5C instead of 2C, but nets me 500 more damage.